Dwyer Instruments 1920-0 Pressure Switch 318973-401 Unlike variable expansion valves

Unlike variable expansion valves

This industrial V-belt is a standard-dimension replacement part that meets RMA standards for static conductivity and oil resistance

Clean the motor shaft thoroughly and ensure the setscrews are torqued to manufacturer specifications to maintain mechanical drive integrity

which is critical for efficient fuel combustion

Dwyer Instruments 1920-0 Pressure Switch 318973-401 Unlike variable expansion valvesThe Dwyer 1920 0 Pressure Switch is a high precision differential pressure switch designed for critical HVAC and industrial process monitoring. Engineered for low pressure applications, this unit features an adjustable set point range of . 15" to . 55" w. c. with a deadband of approximately 0. 10" w. c. Its SPDT switch configuration allows for versatile wiring as either normally open or normally closed, making it a reliable choice for fan status